package com.chnbst.bstyun.core.common;


import java.io.File;  
import java.io.FileOutputStream;  
import java.io.IOException;  
import java.io.InputStream;  
import java.io.OutputStream;
import java.util.Enumeration;  

import org.apache.tools.zip.ZipEntry;
import org.apache.tools.zip.ZipFile;

/** 
 * 可以处理中文文件名 
 */  
public class ZipUtil   
{  
	/** 
     * 解压到指定目录 
     * @param zipPath 压缩文件地址
     * @param descDir 解压后的目标地址
     * @author yanwl 
     */  
    public static void unZipFiles(String zipPath,String descDir)throws IOException{  
        System.out.println("zipPath:"+zipPath);
        System.out.println("descDir:"+descDir);
    	
    	unZipFiles(new File(zipPath), descDir);  
    }  
    /** 
     * 解压文件到指定目录 
     * @param zipFile 压缩文件地址
     * @param descDir 解压后的目标地址
     * @author yanwl 
     */  
    @SuppressWarnings("rawtypes")  
    public static void unZipFiles(File zipFile,String descDir)throws IOException{  
        File pathFile = new File(descDir);  
        if(!pathFile.exists()){  
            pathFile.mkdirs();  
        }  
        ZipFile zip = new ZipFile(zipFile,"GBK");  
        for(Enumeration entries = zip.getEntries();entries.hasMoreElements();){  
            ZipEntry entry = (ZipEntry)entries.nextElement();  
            String zipEntryName = entry.getName();  
            InputStream in = zip.getInputStream(entry);  
            String outPath = (descDir+zipEntryName).replaceAll("\\*", "/");;  
            //判断路径是否存在,不存在则创建文件路径  
            File file = new File(outPath.substring(0, outPath.lastIndexOf('/')));  
            if(!file.exists()){  
                file.mkdirs();  
            }  
            //判断文件全路径是否为文件夹,如果是上面已经上传,不需要解压  
            if(new File(outPath).isDirectory()){  
                continue;  
            }  
            //输出文件路径信息  
            System.out.println(outPath);  
              
            OutputStream out = new FileOutputStream(outPath);  
            byte[] buf1 = new byte[1024];  
            int len;  
            while((len=in.read(buf1))>0){  
                out.write(buf1,0,len);  
            }  
            in.close();  
            out.close();  
            }  
        System.out.println("******************解压完毕********************");  
    }  
    
    public static void main(String[] args) throws IOException {  
        /** 
         * 解压文件 
         */  
        File zipFile = new File("d:/商城.zip"); 
        String path = "d:/"; 
        unZipFiles(zipFile, path);
    }  
}  